Bushing fob automobile dooe-curtain bobs



April 9, 1929.

G. E. BISHOP BUSHING FOR AUTOMOBILE DOOR CURTAIN RODS Fiied Aug. 14, 1925 m ruawn v Patented Apr. 9, 1929.

'UNITED STATES GEORGE E. msnor, F CLEVELAND, HIO.

BUSHING on AUTOMOBILE DOOR-contain RODS.

Application filed August 14, 1925 Serial NO. some.

My invention relates to bushings and particularly to a device oi this'character adapted to be secured to an automobile door and to receive the supporting end of a rod upon which is mounted and carried an automobile side curtain. More particularly, the invention relates to improvementsin a bushing which is formed with means for preventing the turning of the supporting'rod in the bushing, specific improved means being also provided for securely locking the bushing itself in the recess formed in the door.

The annexed drawing and the following description set forth in detail certain means embodying my invention, such disclosed means constituting, however, but twoof the various forms in which the principle of the invention may be applied.

In said annexed drawing:

Figurev 1 represents an inside elevation of fragmentary portions ofan automobile body and door and a fragn'ientary elevation of a door curtain rod whose supporting end is mounted in one of my improved bushingssecured in a suitable door recess.

Figure 2 is a vertical section, taken in the plane indicated by the line II- II, Figure 1, the supporting rod being omitted;

Figure 3 is a side elevation of one form of my improved bushing;

Figure at is a front elevation of aslightly modified form; and

Figures 5 and 6 are horizontal sections taken, respectively, in the planes indicated by the lines V-V and VIVI, Figure 3.

Referring to the annexed drawing in which the same elements are indicated respectively by the same ordinals in the several figures, I indicate by the ordinal 1 a portion of an automobile body having a usual side door 2 upon which is mounted by means of a rod 3 any suitable form of side enclosure or door curtain (not shown), adapted to travel out and in with the door 2 as the latter is opened and shut and adapted to form satisfactory joints with the adjacent side closures and the top when the door is closed. The lower end of this supporting rod 3 is mounted in the top of my improved bushing 5 which in turn is secured to the door 2 and, preferably, is secured in a suitable vertical recess 4 formed in the body ofthe door 2.

The bushing 5 is formed in any desired manner so as to prevent the turning of the rod 3 therein. In the form of bushing herein shown, the same presents intermediate its ends an outline angular in cross-section corresponding to that of the ad acently enclosed section ot the rod 3, the latter, in the term herein shown, being formed with two flat 'SlClGS 7 at its lower end adapted to register with plain inner walls 13 of the bushing 5. The bushing'fi herein shown is also shaped so as to present inner bushing shoulders 8 intermediate the upper portion of the bushing and the central angular portion thereof. Thenpper portion 16 of the bushing shown is circular in cross-section so as to receive an upper cylindrical portion 15 of the sup porting end of the rod 3, this cylindrical portion 15 of the rod 3 resting upon the bushing shoulders 8 sothat thereby the entry of the rod 3 into the bushing o is limited. The bushing 5 is seated in a suitable door recess 1 and for purposes of illustration I have shown the door recess 4 circular in crosssection corresponding to the section 16 of the bushing 5, said section 16 of the bushing 5 having an upper end fiangeor cap 6. I form the bushing 5 with a lower extension 14 below the angular wall portion 13 and below the bottom end of the supporting rod section 7.

Theparticular improvements of this invention consist in securing the wall 9 of this lower bushing extension 14 to the wall of the door recess 4 so as securely to lock the bushing in the door recess. The construction is particularly serviceable in obviating the turning of the bushing in the door recess when inserting the curtainrcarrying rod. In the accompanying drawing the particular form of lower bushing extension 14 comprises an integral cylindrical extension corresponding to the upper cylindrical portion 16 of the bushing 5. The means which I have provided for securely locking this bushing extension 14; in the door recess 4c comprises a screw 10 which is formed with a long thread which reaches across the part 14: of the bushing, this screw 10 being insertcd from any suitable side of the door. The screw 10 will worm its way through the bushing walls 9, threading the latter so that they virtually become nuts, whereby the bushing is securely locked to the wall of the door recess 4. By reason of the length of the thread formed upon the screw 10, it reaches the entire distance across the bushing 5, as plainly shown in Figure 2, and after the screw commences to worm its way through the farwall of the bushing, the near wall is tightly drawn up against the wall of the recess h-tcmling to pull the far wall away from the wall of the recess adjacent to it, and actually spacing said far wall of the bushing from the adjacent wallet the recess,

if the bushing is a loose fit within the recess.

This results in an effective locking of the bushing and not merely a more or less insecure fastening which is aptto-hold the bush: ing veryloosely. Even if the lower end 14 of-the bushing- 5 happensto be a looscjfit in the door IBCBSSl, still this section 14 is drawn rigidly up against the wall of the door recess 4 by the action of the screw 1.0 worming its way through the bushing wall 9. It is immaterial whether the bushing portion 14, before the bushing 5 is driven into the door recess 4, is provided with a hole, or pair of holes to receive the forward end of the screw 10. I have shown the form of bushing in Figure 3 provided with-such'holes 11 and the form of bushing in Fig'ure d not so provided; v In either event, the screw 10 will worm its way through-the bushing walls 9 so as virtually to make nuts of the latter. The holes 11' have a diameter about equal tothe diameter of the screw 10 at the root of threadonly, so

that the threads of the latter work their way through the material of the bushing wall. The long thread of the screwlO not only looks the bushing in the door recess, as hereinbefore explained, but the screw lOitselfis securely locked, particularly when the ordinarily thin material used for bushings is intersected by the screw threads. In order to obtain perfect registry of the hole drilledin the door 2 with vthe holes 11. formed in thebnshil g wal s 9, I prefer to form the holes 11 atthe same time that the hole is drilled in the door 2. This drilling is done bvthe aid of a l tablejig after the bushing 5 has been driven into the door recess 41. Although the screw 10 may be inserted from any suitable side of the door p I 2, I have illustrated inthc accompanying drawing the insertion otl tho seine from the inner face of the door 2, the same extending across the bushing portion 14 and taking into the wood of the door 2 adjacent the outer face Qfthe latter,

The bushing 5 maybe made from any it bl ftl naterial permitting the screw 10 to worm its way therethrough and may be form d in a i us Ways.- Suitable eylindrical ub g may be u il z d, 1' h bushing in ay be cast, or formed in other Ways suehas properly u ning up a fla bla k.-

In the particular application ofmy invenvtion shown-in Figurel, the bushing 5 is securedto the door 2 adjacent the closing edge of the latter, the supporting rod 3 being formedwithan offset 12. This offset 12 provideS means for, mounting the rod 3 upon the door- 2 and still allowingfor the insertion of the upper end of the rod in the edge of the door curtainso as to provide. a suitable lapa-hole for receiving the supporting end of a curtain-ca y n d, me n or preventing the turningof the rod in the bushing, and a screw formed with a long thread positioned ,in said automobile body, and extending across the bushing below the rod end and into the body. material upon the opposite side, said screw 1 having worined its way through the bushing walls to lock the bushing in said body recess when it was positioned in said automobile body, whereby. the bushing is'prevented from turning in the-body recess,

Signed by me this 8th day of July, 1925.

GEORGE BISHOP. 

